Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:34 2013

Optimize a model with 108 rows, 81 columns and 288 nonzeros
Presolve removed 36 rows and 36 columns
Presolve time: 0.00s
Presolved: 72 rows, 45 columns, 216 nonzeros
Variable types: 9 continuous, 36 integer (36 binary)
Found heuristic solution: objective 2622.0000000

Root relaxation: objective 5.470000e+02, 32 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0  547.00000    0   24 2622.00000  547.00000  79.1%     -    0s
H    0     0                    2603.0000000  547.00000  79.0%     -    0s
     0     0  774.47047    0   18 2603.00000  774.47047  70.2%     -    0s
     0     0  777.85382    0   23 2603.00000  777.85382  70.1%     -    0s
     0     0  779.06414    0   21 2603.00000  779.06414  70.1%     -    0s
     0     0  780.20532    0   21 2603.00000  780.20532  70.0%     -    0s
     0     0  780.20532    0   21 2603.00000  780.20532  70.0%     -    0s
H    0     0                    1725.0000000  780.20532  54.8%     -    0s
     0     2  783.43884    0   21 1725.00000  783.43884  54.6%     -    0s
H  223   154                    1659.0000000  921.00000  44.5%   3.6    0s
*  236   154              15    1620.0000000  921.00000  43.1%   3.6    0s
H  606   253                    1612.0000000 1075.00000  33.3%   3.4    0s
H  609   242                    1599.0000000 1075.00000  32.8%   3.4    0s
H  669   261                    1598.0000000 1075.00000  32.7%   4.5    0s

Cutting planes:
  Gomory: 10
  Implied bound: 2
  MIR: 19

Explored 7135 nodes (17519 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.597999999997e+03, best bound 1.597999999997e+03, gap 0.0%